<template>
  <div>
    <!-- 面包屑导航区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片试图区域 -->
    <el-card>
      <!-- 搜索与添加区域 -->
      <el-row :gutter="20">
        <el-col :span="7">
          <el-input
            clearable
            placeholder="请输入内容"
            v-model="queryInfo.query"
            v-on:keyup.13.native="getUserList"
            @clear="getUserList"
          >
            <el-button
              slot="append"
              icon="el-icon-search"
              @click="getUserList"
            ></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <!-- 添加按钮 -->
          <el-button type="primary" @click="addDialogVisible = true"
            >添加用户</el-button
          >
        </el-col>
      </el-row>
      <!-- 用户列表区域 -->
      <el-table :data="userlist" style="width: 100%" border stripe>
        <!-- 
          label 指定标题
          prop 是要填充的数据  
         -->
        <el-table-column type="index" label="#"></el-table-column>
        <el-table-column prop="username" label="姓名"> </el-table-column>
        <el-table-column prop="email" label="邮箱"> </el-table-column>
        <el-table-column prop="mobile" label="电话"> </el-table-column>
        <el-table-column prop="role_name" label="角色"> </el-table-column>
        <el-table-column label="状态">
          <!--在element-UI中 这一块，指定了作用域插槽，也指定了 prop，作用域插槽就会覆盖掉 prop -->
          <template slot-scope="scope">
            <!-- {{ scope.row }} 可以拿到这一行的数据 -->
            <el-switch
              v-model="scope.row.mg_state"
              @change="userStageChanged(scope.row)"
            >
            </el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作" width="300px">
          <template slot-scope="scope">
            <!-- 修改按钮 -->
            <el-button
              type="primary"
              icon="el-icon-edit"
              size="mini"
              @click="showEditDialog(scope.row.id)"
            ></el-button>
            <!-- 删除按钮 -->
            <el-button
              type="danger"
              icon="el-icon-delete"
              size="mini"
              @click="removeUserByid(scope.row.id)"
            ></el-button>

            <el-tooltip effect="dark" content="分配角色" placement="top">
              <!-- 分配角色 -->
              <el-button
                type="warning"
                icon="el-icon-setting"
                size="mini"
                :enterable="false"
                @click="setRole(scope.row)"
              ></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>

      <!-- 分页区域 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[1, 2, 5, 10]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      >
      </el-pagination>
    </el-card>

    <!-- 添加用户对话框 -->
    <el-dialog
      title="添加用户"
      :visible.sync="addDialogVisible"
      width="50%"
      @close="addDialogClosed"
    >
      <!-- 内容主体区域 -->
      <el-form
        :model="addForm"
        :rules="addFormRules"
        ref="addFormRef"
        label-width="70px"
      >
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password" type="password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!-- 底部区域 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 修改用户对话框 -->
    <el-dialog
      title="修改用户信息"
      :visible.sync="editDialogVisible"
      width="50%"
      @close="editDialogClosed"
    >
      <!-- 修改用户对话框 表单区域 -->
      <el-form
        :model="editForm"
        :rules="editFormRules"
        ref="editFormRef"
        label-width="70px"
      >
        <el-form-item label="用户名">
          <el-input v-model="editForm.username" disabled></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机号" prop="mobile">
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editUserInfo">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 分配角色对话框 -->
    <el-dialog
      title="分配角色"
      :visible.sync="setRoleDialogVisible"
      width="50%"
    >
      <div>
        <p>当前的用户：{{ userInfo.username }}</p>
        <p>当前的角色：{{ userInfo.role_name }}</p>
        <p>
          分配新角色：
          <el-select v-model="selectRoleId" placeholder="请选择">
            <el-option
              v-for="item in roleList"
              :key="item.id"
              :label="item.roleName"
              :value="item.id"
            >
            </el-option>
          </el-select>
        </p>
        <!-- 下拉列表 -->
      </div>
      <span slot="footer" class="dialog-footer">
        <el-button @click="setRoleDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>
<style lang="less" scoped>
</style>
<script>
export default {
  data() {
    // 自定义校验规则

    // 验证  邮箱的规则
    var checkEmail = (rule, value, callback) => {
      // 第二个参数是 输入框的值 ，第三个参数是回调函数，当符合要求后，要调用这个回调函数
      const regEmail = /^\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*$/
      if (regEmail.test(value)) {
        return callback()
      }
      callback(new Error('请输入合法的邮箱'))
    }

    // 验证手机号的规则
    var checkMobile = (rule, value, callback) => {
      const regMobile = /^(13[0-9]|14[5|7]|15[0|1|2|3|4|5|6|7|8|9]|18[0|1|2|3|5|6|7|8|9])\d{8}$/
      if (regMobile.test(value)) {
        return callback()
      }
      callback(new Error('请输入正确的手机号'))
    }
    return {
      //  获取用户列表的参数对象
      queryInfo: {
        query: '',
        pagenum: 1,
        pagesize: 2,
      },
      userlist: [],
      total: 0,
      // 控制 添加 按钮 的 显示与隐藏
      addDialogVisible: false,
      // 添加用户的表单数据
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: '',
      },
      // 添加表单的验证规则对象
      addFormRules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          {
            min: 3,
            max: 10,
            message: '长度在 3 到 10 个字符',
            trigger: 'blur',
          },
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          {
            min: 3,
            max: 10,
            message: '长度在 6 到 15 个字符',
            trigger: 'blur',
          },
        ],
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' },
        ],
        mobile: [
          { required: true, message: '请输入手机号', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' },
        ],
      },
      // 控制 修改 按钮 的 显示与隐藏
      editDialogVisible: false,
      // 修改用户信息 时候的空对象
      editForm: {},
      // 修改用户信息的 校验规则
      editFormRules: {
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' },
        ],
        mobile: [
          { required: true, message: '请输入手机号', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' },
        ],
      },
      // 分配角色 的 对话框 显示与隐藏
      setRoleDialogVisible: false,
      // 需要被分配角色 的 用户信息
      userInfo: {},
      // 所有角色的数据列表
      roleList: [],
      // 默认选中的角色 ID 值
      selectRoleId: '',
    }
  },
  //   data和methods 已经可以用了
  created() {
    this.getUserList()
  },
  methods: {
    async getUserList() {
      const { data: res } = await this.$http.get('users', {
        params: this.queryInfo,
      })
      if (res.meta.status != 200)
        return this.$message.error('获取用户列表数据失败')
      this.userlist = res.data.users
      this.total = res.data.total
      // console.log(res)
    },
    // 每页条数改变的时候，会触发
    handleSizeChange(newSize) {
      // console.log(newSize)
      this.queryInfo.pagesize = newSize
      this.getUserList()
    },
    // 页码值变换的时候
    handleCurrentChange(newPage) {
      this.queryInfo.pagenum = newPage
      this.getUserList()
    },
    // 状态按钮 修改的事件
    async userStageChanged(userinfo) {
      const { data: res } = await this.$http.put(
        `users/${userinfo.id}/state/${userinfo.mg_state}`
      )
      if (res.meta.status != 200) {
        return this.$message.error(res.meta.msg)
      }
      this.$message.success(res.meta.msg)
    },
    // 监听添加用户对话框的关闭事件
    addDialogClosed() {
      this.$refs.addFormRef.resetFields()
    },
    //  添加用户板块，点击确定按钮后
    addUser() {
      this.$refs.addFormRef.validate(async (valid) => {
        if (valid == true) {
          const { data: res } = await this.$http.post('users', this.addForm)
          if (res.meta.status != 201) return this.$message.error('添加用户失败')
          this.$message.success('添加用户成功')
          this.addDialogVisible = false
          // 刷新 用户列表 里面的数据
          this.getUserList()
        }
      })
    },
    // 修改用户的对话框
    async showEditDialog(id) {
      const { data: res } = await this.$http.get(`users/${id}`)
      if (res.meta.status != 200) {
        this.$message.error('查询用户失败')
      }
      this.editForm = res.data
      this.editDialogVisible = true
    },
    // 对话框关闭的时候，重置表单的内容
    editDialogClosed() {
      this.$refs.editFormRef.resetFields()
    },
    // 修改 对话框 ，确定按钮  点击的时候
    editUserInfo() {
      this.$refs.editFormRef.validate(async (valid) => {
        if (!valid) {
          return
        }
        // 发起请改修护信息请求
        const { data: res } = await this.$http.put(
          'users/' + this.editForm.id,
          {
            email: this.editForm.email,
            mobile: this.editForm.mobile,
          }
        )
        if (res.meta.status != 200) {
          return this.$message.error('更新用户信息失败')
        }
        this.$message.success('更新用户信息成功')
        this.editDialogVisible = false
        this.getUserList()
      })
    },
    // 删除用户
    async removeUserByid(id) {
      // 弹框
      const removeUserByidResult = await this.$confirm(
        '此操作将永久删除该用户, 是否继续?',
        '提示',
        {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning',
        }
      ).catch((err) => err)
      // 如果用户确认删除，则返回值为字符串 confirm
      // 如果用户取消删除，则返回值为字符串 cancel
      if (removeUserByidResult != 'confirm') {
        return this.$message.info('已经取消删除')
      }
      const { data: res } = await this.$http.delete('users/' + id)
      if (res.meta.status != 200) {
        return this.$message.error('删除用户失败')
      }
      this.$message.success('删除用户成功！')
      this.getUserList()
    },
    // 分配角色对话框
    async setRole(userinfo) {
      this.userInfo = userinfo
      // 获取角色列表
      const { data: res } = await this.$http.get('roles')
      if (res.meta.status !== 200) {
        return this.$message.error('获取角色列表失败')
      }
      this.$message.success('获取角色列表成功!!')
      this.roleList = res.data
      this.setRoleDialogVisible = true
    },
    async saveRoleInfo() {
      if (!this.selectRoleId) {
        return this.$message.error('请选择分配用户角色')
      }
      const { data: res } = await this.$http.put(
        `users/${this.userInfo.id}/role`,
        {
          rid: this.selectRoleId,
        }
      )
      if (res.meta.status !== 200) {
        return this.$message.error('更新角色失败')
      }
      this.$message.success('更新角色成功!!')
      this.getUserList()

      this.setRoleDialogVisible = false
      this.selectRoleId = ''
      this.userInfo = {}
    },
  },
}
</script>